2-溴-4,5-甲氧基苯乙酸 、
草酰氯 、 1-[4-(4,5-Dihydro-1h-pyrazol-3-yl)-phenyl]-3-methyl-urea trifluoro-acetic acid salt 在
1-(4-{1-[2-(2-bromo-4,5-dimethoxy-phenyl)-acetyl]-4,5-dihydro-1H-pyrazol-3-yl}-phenyl)-3-methyl-urea 作用下,
以to give final compound 1-(4-{1-[2-(2-bromo-4,5-dimethoxy-phenyl)-acetyl]-4,5-dihydro-1H-pyrazol-3-yl}-phenyl)-3-methyl-urea (63)的产率得到1-(4-{1-[2-(2-bromo-4,5-dimethoxy-phenyl)-acetyl]-4,5-dihydro-1H-pyrazol-3-yl}-phenyl)-3-methyl-urea